Walmart has a free sample available of Crest 3D White Strips for those who request it.

You can get your free sample of Crest 3D White Strips by clicking on the red button that says Get a Free Sample. Fill out the freebie form and submit. You should get your free sample within the next four weeks.

This freebie is only available while supplies last to those in the U.S. Limit one per household.